shell脚本之while for if 小例子
用上 whilforif打印出 100以内的质数#!/bin/bash
#author Alvin
#version 1.0.0
#test for 1-100 zhishu
a=2
while [ $a -le 100 ];
do
z=1
for (( j = 2;$j < $a;j++ ));do
if [ $(($a%$j)) -eq 0];then
z=0
break
fi
done
if [ $z -eq 1 ];then
echo -ne $a "\t"
fi
let a+=1
done
2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97
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